Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
St. Croix, Virgin Islands (US) Average Monthly Weather
Weather score70Good annual avg
Best months: March, February, April
Across the year, average daytime temperatures are around 30°C, sunshine averages 8h per day, and rainfall totals about 1114mm. Sea temperatures average 28°C across the year.
Annual weather
Annual averages
Temp
30°C
Rain
1114mm
Annual total
Sun
8h
Sea
28°C
Weather score
70
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 111mm, so some wet days are possible.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare St. Croix, Virgin Islands (US) with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is one of St. Croix's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to November
This stretch sets the upper range for average daytime heat.
Rain
August111mm average rain
August is wetter than St. Croix's yearly average, so flexible plans matter more.
Driest monthsJanuary to April and June to July
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.5 hours average sun
August is brighter than St. Croix's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsFebruary to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August29°C average sea
August sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJune to November
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
August66 weather score
August scores below St. Croix's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to April and June
These months have the strongest weather score in the monthly averages.
